[Material]: Made up of High carbon steel material, anticorrosion, not easy to rus-t, and sturdy. [Features]: High strength and hardness, small size, comfortable to wear. [Application]: Design of three jaws, self-centering, widely used for woodworking lathe. The chuck is suitable for machine tools and accessories for general lathes, economical CNC lathes, grinding machines, milling machines, drilling and machine accessories, etc [Compact Size]: The compact chuck is small in volume, easy to use. [Accurate]: With high centering accuracy as well as a large clamping range., Weight: 0.9369646135 pounds, Manufacturer: Ynusgeyx